Life Extension of Waste Heat Boilers in Ammonia Plants

摘要

Life extension measures can significantly increase the total lifetime of the equipment. If they are done correctly and in time, they "buy time" until replacement equipment is available and reduce the risk of unplanned outages. The described solutions are not only limited to case of failures, gas flow reversal or modification to hot/cold alternating tubing can be applied to prolong the total lifetime of the equipment. In future designs the possibility of such measures should be considered right from the beginning. The design should also allow for easy inspection to detect such problems during normal planned shut downs. This I would like to present on a next occasion, in the meanwhile we will proceed with our ideas.